Additional Listing

Spirent PLC
09 March 2006




Application has been made to The UK Listing Authority and the London Stock
Exchange for a block listing of 3,500,000 Ordinary shares of 3 1/3p each under
the Spirent Executive Share Option Scheme, to trade on the London Stock Exchange
and to be admitted to the Official List upon issuance. The shares shall rank
equally with the existing issued shares of the Company.






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